Lorries parked on the M20 in Ashford as Kent Police reintroduced Operation Stack after around 150 migrants tried to storm the Channel Tunnel terminal in Calais in a bid to board UK-bound freight. Gareth Fuller/PA Wire

Fresh disruption was brought to Channel Tunnel services after around 150 migrants tried to storm the terminal in Calais in a bid to board UK-bound freight.

Eurotunnel said services were delayed and cancelled after migrants attempted to access restricted areas on the French side.